10-15K for the motor? Are you buying a brand new one through the dealer? You could get one used and rebuild it for WAY under that. I guess it helps out alot for me that I can do all that crap myself (rebuilding engines, transmissions etc). The rear axle shouldn't need any upgrading for the TQ, the front axle and CV's, possibly but no real upgrades. The hardest part would be getting it mounted and wired up and still keeping all the factory gauges and stuff which is what I would do. I'm currently trying to find another DD so I can get a little crazy with the VX. I'm leaning toward the 5.3 swap but run an Isuzu MUA5 manual trans behind it with the Revo 3:1 gear set in the t-case.